Statistics MCQs
Statistics MCQs cover probability, sampling, hypothesis testing, correlation, regression, and data interpretation. Ideal for CSS, NTS, PMS, GAT, and university exams, they boost conceptual understanding, analytical skills, and real-world statistical application.
Q: The midpoint of a class interval is called
A) Class width
B) Class frequency
C) Class mark
D) Class limit
✅ Correct Answer: C
Explanation: Class mark is calculated as the average of upper and lower limits.
Q: Data collected from a census is
A) Secondary
B) Estimated
C) Grouped
D) Primary
✅ Correct Answer: D
Explanation: Census involves collecting primary data from every member of a population.
Q: A frequency distribution with two peaks is called
A) Uniform
B) Skewed
C) Normal
D) Bimodal
✅ Correct Answer: D
Explanation: A bimodal distribution has two distinct peaks in the data set.
Q: When outcomes are equally likely, the probability of an event is
A) 1/n
B) n
C) Undefined
D) 0
✅ Correct Answer: A
Explanation: Probability is 1 divided by the number of equally likely outcomes.
Q: A box plot is used to display
A) Probabilities
B) Categorical data
C) Spread and center
D) Line relationships
✅ Correct Answer: C
Explanation: A box plot shows median, quartiles, and possible outliers.